grallator builds small webs that are much flimsier than the webs built by most Theridiidae. Webs are not highly utilized, which may be the result of evolutionary pressures of Hawaii's climate that made these webs disadvantageous. The high level of rainfall damages the glue of the web's silk threads, leading to ineffective prey capture. Instead of using the web as a prey-detection medium, T. grallator detects prey through vibrations that are transmitted by the prey species through the resident leaf. Spiders are then able to discern the location and orientation of these prey. Often, the building of small webs is associated with a specialization in prey type, but this is not observed to be the case in T. grallator. During the day, T. grallator spiders tightly cling to the undersides of leaves to evade predation by gleaning birds. At night, when diurnal predatory birds are asleep, these spiders will hang by silk threads under the leaf. Although T. grallator exhibits only minimal use of webs, they can use their silk to capture prey. T. grallator will sense prey based on vibrations and will orient itself near the prey of interest. Then, the spider turns around rapidly and tosses its silk onto the prey to unravel it. The silk consists of a sticky substance that will allow for efficient prey capture. In addition, maternal T. grallator spiders may use webs to guard their egg sacs or store the prey they have caught for their young. Reproduction and life cycle During the last molt of a female T. grallator, a mature male may share a leaf with her. Once the female completes her molt, the male will copulate with her. A few weeks after copulation, the female will deposit her egg sacs and will remain closely attached to the egg sacs by a short silk thread until the eggs have hatched. When the egg sacs are ready to hatch, the maternal female T. grallator will loosen the silk that is wrapped around the eggs to allow the spiderlings to emerge. T. grallator populations seasonally fluctuate in terms of spider size and sex make-up. During winter months, specifically October to March, there is a higher proportion of smaller sized and immature spiders. In the spring, specifically May to August, there is an increased number of adults in the population with the majority of these adults being maternal females. In fact, up to 85%